Machine for sharpening saws



(No Model.)

B. M. PINE.

MACHINE FOR SHARPENING SAWS.

PatehtedJundZG, 1888. I

Witwamao I UNITED States ATENT Fries.

REUBEN M. PINE, OF COLUMBIA CITY, INDIANA.

MACHINE FOR 'SHARPENING SAWS ,SPECIPICATION forming part of ItettersPatent No. 385,004, dated June 26, 1888.

Application filed March 26. 1888.

T (LZZ whom it may concern:

Be it known that I, REUBEN M. PINE, a resident of Columbia City, in thecounty of Whitley and State of Indiana, have invented certain new anduseful Improvements in Machines for Sharpening Saws; and I do herebydeclare the following to be a full, clear, and-exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use the same.

My invention relates to an improvement in machines for sharpening saws,of which the following is a specification.

In the accompanying drawings, Figure 1 is a side elevation of asaw-sharpening machine embodying myimprovements. Fig. 2is a top planview of the same. Fig. 3 is a detailed perspective View of one of thegages.

A represents the base or frame.

I5 represents a pair ofaligned inclined standards that project from theupper side of the base near one end thereof and have their upper endsconnected by a cross-plate, B.

B represents a standard which is parallel with the standards B and issecured near the opposite end of the base. A shaft, 0, isjournaled inbearings in the standards B and has a rigid gear wheel, D, which isarranged between the said standards, and to one end of said shaft issecured a crank, L.

F represents an inclined shaft, which is journaled in the standard Bandin one of the standards B. Rigidly secured to this shaft is a pinion, E,that meshes with the wheel D,aud'

an emery-wheel, G, that has its periphery bcv eled, as shown.

II represents a curved gage-arm, which is provided at its inner endwitha right'angled slotted ear, 0. A set-screw, I, extends through theslotin said ear and enters one of the standards B, and thereby securesthe gage-arm H to said standard and adapts the same to be adjustedvertically or disposed at any desired angle.

I represents a pair of gages, which are arranged on the ends of the baseA, and have the right angled transversely disposed slotted plates 1,which bear upon the lower side of the base, and from the inner sides ofthe said plates depend vertical arms I.

extend through theSlots in the plates and en- Set-screws J Serial No.268,457. (No model.) i

I ter the base, and thereby adapt the said gages to be secured to thebase at any desired adjustment. On one side of the base is a handhold,Q. by means of which the machine may be readily grasped and manipulated.

The operation of the invention is as follows: A circular orstraight-edge saw is secured in a suitable vise or is supported on themandrel as when in operation, and the machine is applied to one side ofthe same, the gages I bean ing against the inner side of the saw and thegage H bearing against the points of some of the teeth thereof. Thiscauses the beveled edge of the emery or grinding wheel to enter thespace between two of the sawteeth, and by properly adj usting the gagesthe said grinding wheel may be caused to grind the teeth to any desireddepth and to any angle. Rotary mo tion is imparted to the grinding wheelwhen the crank-shaft is rotated by reason of the gears hereinbeforedescribed, as will be readily understood.

Having thus described my claim 1. A sawsharpening machine comprising thebase having the gages and the beveled invention, I

tially as described.

2. In a saw-sharpening machine, the combination of the base having thestandards B B, the sliaftO, journaled in standards B and having thecrank and the gear wheel D, the inclined shaft F, journaled in standardB and one of the standards B,'and having the beveled grinding-wheel, andthe pinion meshing with the wheel D, substantially as described.

3. The combination of the base, the beveled grinding-wheel mountedthereon, means, substantially as specified, to rotate saidgrindingwheel, the laterally-adjustable gages I at the ends of the base,andthevertically-adjustable gage II above the base, said gage H beingalso adapted to be inclined, substantially as described.

In testimony whereofI have signed this specification in the presence oftwo subscribing witnesses.

It. M. PINE.

V i tnesses:

Gno. H. LAMAR, SOHUYLER DURYEE.

grinding-wheel mounted onthe base, substan;

